My dishwasher comes on and then stops before cycling

Does it stop and run through its cycle after a few seconds ? Check this link

You may have power, however if a circuit board fails, all the power in the world won't start the washer. You need a technician to test the circuit for internal damage.

change pump or check filter.....

Hi,
Here is a tip that will help you to find out why water will not come into thedishwasher...

Dishwasher Trouble No Water entering Dishwasher

heatman101

DWF 415 Ikea Whirlpool Dishwasher has constant green blinking light. Drain pump works ok (as it will pump out a jug of water if I tip it into it!) but no water comes in. Cycle stops about 30 seconds after thre is no more water to pump. Any ideas on how to fix?

Have someone replace your bad door switch

If you are still having problems with your LG dishwasher, turn off the hot water supply to the dishwasher and remove the hot water inlet pipe (remove the lower, front panel (toe kick plate) )
Check the screen/filter at the water inlet on the dishwasher.
Reconnect the pipe and turn the hot water supply back on.
Test out and enjoy!

check the heating elemt circut and make sure that heated dry has been selected it the machine allows to need the model of the machine for more help

have they checked the thernals on the bottom of the tub

carry out a reset.
This should reset the board back to factory settings,
Deep Diver